Packing



May 8, 1928.

G. BERGMANN 'PACKING Filed Jan. 27, 1927 c'gcc' coca Patented May 8,

PATENT OFF GEOBG BEBGHANN, OI BEBLIN-WILHEBSDORF, emmm.

rame.

Application filed January 27, 1927, seri al l o. 18,110, and in Germany e'ptembe- I, 1885.

My present invention relates to packings in general, and has for its ob ect to prov de a packing with transparent faces showing visibly the quality and quantity of the goods 6 therein contained. Heretoforepackngs of this kind have alwavs had the drawbackof lacking stability an Were apt to be eas ly bent ,out of shape so that the commodities therein contained often becane damaged. 10 They were further diflicult and expensive to manufacture. The packing according to my present invention consists of two parts,-towit, the transparent cover and the frame. The cover is cut to any required length from a piece of 'transparent material turned out in tubular form in any desired length. The frame consist of a 'strip of cardboard or similar material which is gzenerally` creased into a number of like sections and so folded together that a frame of star-shaped cross section is formed. .This frame is inserted in folded condition, that is to say, with as little spacial extent possible, into the transparent tubular cover, and then opened to the desired star-shape, stretching the cover un: der tension into a prisn which may have three or more faces according to the shape of' the star-shape' of the frame. The dimensions of the frame and' the tubular cover must be of such proportions that, the cover is`drawn tight in the frame when the l'atter is extended. Each section of the stripout of which the frame is formed, is provided on each of its two front faces with a flaplike projection cut in such manner that it can be folded at right angles to the plane of the section, thus closing the space between the walls ofthe frame and the outer cover at both ends .in such' manner that the space 40 formed by two adjoining sections and the coveris closedby said flaps slitted at these sections. By pasting these flaps together or with the ends of the transparent cover folded over them, or by scaling` the package is' 4 tightly closed; after placing the commodities in the' several compartments of the packing, formed by the star-shaped frame. By-means of this scaling process the commodities can be taken .out as required for use from one :so or more compartments separately without it being necessary to open the others. This is a great advantage for commodities which spoil easily and are used in small quantities. commodities packed in this manner can be 66 viewed from all sides for the. purpose of asce-taining both quantity and quality.

Should a single commodity be larger than a compartment, the walls of the iframe are provided with recesses shaped to fit exactly the commodity in question without it being 00 able to move about in the package. In orderto save material, especially in large package s, these recesses are'formed' by having the frarne consist of several parts, to-wit, two short star-shaped end pieces formed in pre- 66 cisely the same nanner as the above described franeof a' strip of cardboard or the like, folding them together, and of a number of webs of cardboard or the like 'connected with the walls of the star-shaped 7 end pieces by means of fastening strips of metal or the like. These metal strips can be forned in such a manner that they simultaneously serve as reinforcements fol:` the webs. The frames can be folded and opened in precisely the same manner as those made of one piece,

In packing large commodities it will be found more practical, to wind the cover tightly around the opened frame'in which, the commodity is to be placed, instead of v using a tbular cover, as in dealing' with larger dimensions the opening up of the frame within the tubular cover would be attended with diflicnlties. The packing can be shipped and stored knocked down, and put together when tobe filled, without any skilled labor being required. v

Embodiments of my invention are illustrated inthe drawings by way of example.

Fig. 1 shows a tube of transparent material of any length. the package cover being cut therefrom to the required length.

Fig. 2 shows a strip of cardboard from which 'the frame is folded. 0 Fig. 3 is a cross-section of the frame folded from this strip.

Figs. 4 and 5 illustrate the insertion of the frame in folded condition into the tubular {oven in longitudinal as well as cross-secoo Figs. 6 and 7 *show in longitudinal and .cross section respectively, the opened fram within the cover, bent at one end and with the cover ends folded over at thisend. o

Fig. 8 is a view of a finished package 'without contents, in the shape of a quadrilateral prism.

' Fig. 9 is a view of a package in the shape of a trilateral prism, in -which an eggo shaped object is packedand whereby the walls of the frame are provided with recesses into which the 4 egg-shaped object is fitted.

Fig. is a frame composed of separately i manufactured parts.

The frame strip a of cardboard or other suitable material, shown in Fig. 2, is divided by creases b into eight sections c, the packbeing divided into four comp'artments.

a e Should more compartments be desired, the

- creased into a larger number of sections.-

strip must be correspondingly longer and rial of any desired length, and opened star shaped inside the tube (Fig. 6). By opening the frame in this nanner the tubular cover e is drawn tight into 'a prismatic shape. The slitted flaps f on the various sectons are bent perpendiclarly to the walls of the star-shaped frame in the manner shown in Fig.- G and' gummed or sealed to the cover ends g folded overthem. The desired star shape of the frame after insertion into the tubul'ar cover until scaling by the flaps 'is best preserved by inserting wooden blocks of corresponding cross section into the compartments between the partitions of the frame. These blocks are removed when the 1 respective compartments are closed. After removing the blocks and filling the first compartment, the second face is also closed by bending it at right angles or sealing with the cover ends g. The commodities packed in the various compartments may be of .various kinds and can be readily detected with'respect to quality as well as quantity through the transparent cover (l. The contents of the various compartments can-be taken out one after the other by merely looscning and bending up the flap f of the compartment in question. For packing special commodities of larger dimensions than the compartments of the packages, the walls z' of the frame are provided with recesses which can be shapcd in such manner that the commodty to be packcd such as an egg 'shaped object, for instance, (see Fig. 9), fits exactly into such recesses and cannot, ac-

cordingly, work loose within the package. .In larger packings in which waste of material for these recesses would render the packings much more expensive, the frame may be made in several parts. The frame shown sponding walls m of the star-shaped end pieces k.

lVhat I claim as my invention and desire to secure by Letters Patent of the 'United States is 1. Packing, comprising, in conbination, a tube-shaped transparent cover, and a frane adapted to be folded into a prisnatic body of smaller spacial extent, said frane consisting of two polygonal end pieces and radially disposed connecting walls, said frane being adapted to Stretch said transparent tubular cover 'into a prismatic body.

2. Packing, comprising, in conbination, a tube-shaped transparent cover, a frame adapted to be inserted into said-tbe-shaped cover in folded condition, said -frane being further` adapted to Stretch said transparent tubular cover into aprismatic body, said frane consisting of two polygonal en pieces and radially disposed connecting walls, wherebythe space between said end pieces is divided up into radial compartments, each of said polygonal end pieces consisting of sections adapted to'be turned in line with said 'radial connect-ing walls to allowvsaid ra- 'dial compartments to be filled with the goods to be packed.

3. Packing, comprising, in combination, a tube-shaped transparent cover, a frame adapted to be folded into a prismatic body of smaller spacial'extent, said frame consisting of two polygonal end pieces and ra dially disposed connecting walls, said frame being adapted to Stretch said transparent tubular 'cover into 'a prismatic body, and re: cesses within said radial connecting walls, .said recesses being shaped and ,disposed so as to cooperate in providing a central space for the reception of an object to be packed.

4. Packing, comprising, in combination, a frame work of prismatic exterior structure and comprising two end pieces and stays interconnecting said end pieces and disposed so as to form the longitudinal edges of the prsnatic space cnclosed by said frame structure, and a transparent film encasing said frame structure so as to form the longitudi- 

